초록 ▼

A containment reservoir for a liquid, such as petroleum oil, comprising, a walled ground containment space or pit, opening upwardly, with the space containing a liquid impervious flexible liner generally following the contour of the space, and with the liner comprising a layer of pervious fabric mat

A containment reservoir for a liquid, such as petroleum oil, comprising, a walled ground containment space or pit, opening upwardly, with the space containing a liquid impervious flexible liner generally following the contour of the space, and with the liner comprising a layer of pervious fabric material having on at least one of its sides a layer of liquid impervious material, such as rubber, the liner being operable to prevent escape of liquid through the liner from the containment space; means are provided coacting with the liner covered containment space for removing liquid from the reservoir. A covering layer of pervious fabric material filters anything, including liquid, passing into the reservoir. A method of forming the reservoir from predetermined width strips of liner stock, and a method of retaining and salvaging oil spilled along a railroad track environment is also disclosed.

대표청구항 ▼

A method of lining an earthen containment space having sloping defining walls with a flexible liquid impervious liner generally following the contour of the containment space to define a reservoir for collecting liquid therein, comprising, providing liner stock in flexible strip form having a layer

A method of lining an earthen containment space having sloping defining walls with a flexible liquid impervious liner generally following the contour of the containment space to define a reservoir for collecting liquid therein, comprising, providing liner stock in flexible strip form having a layer of pervious fabric material having on at least one of its sides an attached layer of liquid impervious material, such as rubber, laying a plurality of strips of the liner material with the impervious layer facing outwardly of the reservoir space and with the liner strips overlapping, adhesively securing the overlapped junctures of the liner strips together so as to restrict escape of liquid from said containment space, and extending said liner material upwardly to the level of the adjoining surface and horizontally outwardly therefrom, with the liner generally conforming to said sloping walls of the earthen containment space, and including providing a drain area within the confines of the reservoir at the lowermost level of the reservoir and toward which the sloping walls extend, for collecting liquid therein.